The following reaction is used to generate hydrogen gas over water in the laboratory. If 243 mL of gas is collected at 25°C and has a total pressure of 745 mm Hg, what mass of hydrogen is produced? A possibly useful table of water vapor pressures is provided below.                             Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g)                       T (°C)          P (mm Hg)                                                                                                             20                17.55                                                                                                             25                23.78                                                                                                              30                31.86

A 1.000 kg sample of nitroglycerine, C3H5N3O9, explodes and releases gases with a temperature of 1985°C at 1.100 atm. What is the volume of gas produced?                                                 C3H5N3O9(s) → CO2(g) + H2O(g) + N2(g) + O2(g) (unbalanced)

The cusps of the atrioventricular (AV) valves attach directly to:

Which of the following species has a pyramidal structure (molecular geometry)?

The best Lewis structure for sulfuric acid has zero formal charges, sulfur as the central atom, and no bonds between S and H. How many single and double bonds, respectively, are there in this Lewis structure?

What tiny flying insect is often an inhabitant of restrooms? (Fill-in-the-blank) Give common name.

The specific epithet erythrocephalus translates as:

An OTR is working with a 32 year old female client about one month after a moderate TBI sustained during a car accident.  The client complains of frequent frontal headaches, occasional blurred vision, and trouble ‘finding things even when I am looking right at them’. She is often observed squinting or closing one eye when trying to read or search for items. Which assessment would be most appropriate to assess her visual function?

A client, 9 months post CVA, has recently gone back to work and complains of disorganization, missing meetings, frequent mistakes that she feels unable to prevent.  She is most likely having difficulty in which cognitive domain? 

You work for a store that sells and repairs computers. Due to the room’s layout, while repairing computers, you must walk from one side of the carpeted room to the other frequently. Which of the following would BEST protect you from static electricity buildup?